9902.07.37 - 4-[(1-Hydroxy-1,3-dihydro-2,1-benzoxaborol-5- yl)oxy]benzonitrile (Crisaborole) (CAS No. 906673-24-3) (provided for in subheading 2934.99.30)

This HTS category, 9902.07.37, pertains to the specific pharmaceutical compound 4-[(1-Hydroxy-1,3-dihydro-2,1-benzoxaborol-5-yl)oxy]benzonitrile, also known as Crisaborole (CAS No. 906673-24-3). This compound is provided for under subheading 2934.99.30 of the Harmonized Tariff Schedule, indicating its classification as a heterocyclic compound with an unfused oxygen hetero-atom. The inclusion in Chapter 99 signifies that this classification is subject to temporary legislation, trade agreement modifications, or specific import restrictions.

Given its placement within Chapter 99, this category is distinct from the permanent classifications found in earlier chapters. While other HTS codes, such as those in Chapter 29, might classify organic compounds based on their chemical structure and properties, this specific entry in Chapter 99 highlights a particular tariff treatment or restriction applicable to Crisaborole. It serves to manage the importation of this compound, potentially for reasons related to public health, trade policy, or other specific government directives, separate from its general chemical classification.

As this is a leaf node, there are no further subcategories to explore. The classification for 9902.07.37 is precise, focusing solely on the specified chemical substance, Crisaborole. Any importation of this compound must be evaluated against the conditions and provisions outlined within Chapter 99, in addition to its underlying classification as a chemical compound.